Prior to the killings, OJ's son Jason was diagnosed with "intermittent rage disorder" (AKA Jekyll and Hyde syndrome) and was given the drug Depakote to control his rage and seizures
This content comes entirely from O.J. Is Innocent And I Can Prove It and is published with permission from author William Dear. Business Insider cannot confirm his claims.
Jason abused alcohol, ecstasy and cocaine as early as age 14; police reports indicate that he was arrested at least four times (including DUI, driving with a suspended license and assault with a deadly weapon) while medical records reveal at least three suicide attempts
This content comes entirely from O.J. Is Innocent And I Can Prove It and is published with permission from author William Dear. Business Insider cannot confirm his claims.
A note titled "Dear Jason" that described the writer as being three persons was identified by handwriting experts as being written by Jason Simpson; he also wrote about killing anyone who hurt his loved ones and how he felt like "Jekyll and Hyde" (in diaries obtained by Dear)
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In January 1994, six months before the killings, Jason went to the emergency room because he heard voices of people who weren't there and said he felt as if he was "going to rage" because he ran out of Depakote; he stopped taking Depakote two months before the murders
From O.J. Is Innocent And I Can Prove It. Content and photos published with permission of author William C. Dear.
In his past, Jason had nearly killed a girlfriend (with a knife) and almost seriously injured another in fits of rage (whereas O.J. has been accused of domestic abuse but he has never been arrested for assault and was not prone to use weapons to settle a dispute)
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The night of the murders, Jason expected Nicole Brown Simpson's family to dine at the restaurant where he was working, but Brown Simpson chose another restaurant (probably without telling Jason)
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The murders took place between 9:45 and 10:05 p.m.; Jason was by himself after approximately 9:50 p.m. and "has no alibi that can be supported by anyone else as to where he was while the killings occurred."
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Jason's time card for the night of the murders was handwritten, despite the fact that the electronic time clock was working
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The black "navy watch cap" found at the crime scene contained animal hair and hair fibers that did not match O.J.
This content comes entirely from O.J. Is Innocent And I Can Prove It and is published with permission from author William Dear. Business Insider cannot confirm his claims.
Photographs obtained from Jason's storage locker show that Jason wore watch caps often; one (dated 3/24/93) shows him sitting with his dog while wearing a cap identical to the one found at the crime scene
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The day after the murders (and four days prior to his arrest), O.J. hired top criminal attorney Carl Jones to represent Jason even though he wasn't a suspect
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One of Jason's ex-classmates informed Dear that Jason was trained in hand-to-hand combat as well as field knife training while attending the Army and Navy Academy, whereas O.J. hates the sight of blood
This content comes entirely from O.J. Is Innocent And I Can Prove It and is published with permission from author William Dear. Business Insider cannot confirm his claims.
Dear bought contents of a storage locker owned by Jason Simpson around the time of the murders and found a knife that matched the description of the murder weapon. "After examination of [Jason's] knife by a world-renowned forensic scientist, the butt of the knife appears to match the blow/injury Nicole Simpson suffered on the top of her head" (whereas O.J.'s Swiss Army knife and stilleto were conclusively ruled out as the murder weapon)
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Based on pictures of Ron Goldman's badly bruised and swollen hands, he must have struck hard blows to the assailant; the next day O.J. voluntarily stripped at the LAPD and there were no marks or bruises that indicated he had been in a scuffle
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At the time of the murders, 24-year-old Jason was on probation for assault with a deadly weapon for attacking his boss with a kitchen knife
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The LAPD found 15 separate unidentified fingerprints at the crime scene (none belonged to O.J. and police never compared Jason's fingerprints)
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"Investigators found blood and skin under Nicole's fingernails ... along with blood drops on her back that didn't match those of O.J." (Jason was never interviewed and never gave a DNA sample)
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Three crime scene experts studied the investigative material and determined that "Jason Simpson should have been considered a major suspect in the murders."
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Four doctors reviewed the investigative material along with Jason's records and determined that "Jason Simpson is psychologically disturbed and in need of help."
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Jason's psychiatrist said that "if Jason was guilty he could never be convicted because of his mental condition."
This content comes entirely from O.J. Is Innocent And I Can Prove It and is published with permission from author William Dear. Business Insider cannot confirm his claims.